MAY 21, 1978: The second of three San Francisco Museum of Modern Art Soapbox Derbies took place at McLaren Park.

MAY 21, 1978: The second of three San Francisco Museum of Modern Art Soapbox Derbies took place at McLaren Park.

In 1933 the first soapbox derby was held in Dayton, Ohio at the height of the Depression to lift civic morale. 45,000 spectators arrived to…

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